Added files needed for the GestureRecognizer API implementation

2022-10-24 06:08:27 -07:00
parent af051dcb62
commit 9a1a9d4c13
12 changed files with 1386 additions and 0 deletions
@@ -0,0 +1,91 @@
+# Copyright 2022 The MediaPipe Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for gesture recognizer."""
+
+import enum
+
+from absl.testing import absltest
+from absl.testing import parameterized
+
+from mediapipe.python._framework_bindings import image as image_module
+from mediapipe.tasks.python.components.containers import rect as rect_module
+from mediapipe.tasks.python.components.containers import classification as classification_module
+from mediapipe.tasks.python.components.containers import landmark as landmark_module
+from mediapipe.tasks.python.core import base_options as base_options_module
+from mediapipe.tasks.python.test import test_utils
+from mediapipe.tasks.python.vision import gesture_recognizer
+from mediapipe.tasks.python.vision.core import vision_task_running_mode as running_mode_module
+
+_BaseOptions = base_options_module.BaseOptions
+_NormalizedRect = rect_module.NormalizedRect
+_ClassificationList = classification_module.ClassificationList
+_LandmarkList = landmark_module.LandmarkList
+_NormalizedLandmarkList = landmark_module.NormalizedLandmarkList
+_Image = image_module.Image
+_GestureRecognizer = gesture_recognizer.GestureRecognizer
+_GestureRecognizerOptions = gesture_recognizer.GestureRecognizerOptions
+_GestureRecognitionResult = gesture_recognizer.GestureRecognitionResult
+_RUNNING_MODE = running_mode_module.VisionTaskRunningMode
+
+_GESTURE_RECOGNIZER_MODEL_FILE = 'gesture_recognizer.task'
+_IMAGE_FILE = 'right_hands.jpg'
+_EXPECTED_DETECTION_RESULT = _GestureRecognitionResult([], [], [], [])
+
+
+class ModelFileType(enum.Enum):
+  FILE_CONTENT = 1
+  FILE_NAME = 2
+
+
+class GestureRecognizerTest(parameterized.TestCase):
+
+  def setUp(self):
+    super().setUp()
+    self.test_image = _Image.create_from_file(
+        test_utils.get_test_data_path(_IMAGE_FILE))
+    self.gesture_recognizer_model_path = test_utils.get_test_data_path(
+        _GESTURE_RECOGNIZER_MODEL_FILE)
+
+  @parameterized.parameters(
+      (ModelFileType.FILE_NAME, _EXPECTED_DETECTION_RESULT),
+      (ModelFileType.FILE_CONTENT, _EXPECTED_DETECTION_RESULT))
+  def test_recognize(self, model_file_type, expected_recognition_result):
+    # Creates gesture recognizer.
+    if model_file_type is ModelFileType.FILE_NAME:
+      gesture_recognizer_base_options = _BaseOptions(
+          model_asset_path=self.gesture_recognizer_model_path)
+    elif model_file_type is ModelFileType.FILE_CONTENT:
+      with open(self.gesture_recognizer_model_path, 'rb') as f:
+        model_content = f.read()
+      gesture_recognizer_base_options = _BaseOptions(
+          model_asset_buffer=model_content)
+    else:
+      # Should never happen
+      raise ValueError('model_file_type is invalid.')
+
+    options = _GestureRecognizerOptions(
+        base_options=gesture_recognizer_base_options)
+    recognizer = _GestureRecognizer.create_from_options(options)
+
+    # Performs hand gesture recognition on the input.
+    recognition_result = recognizer.recognize(self.test_image)
+    # Comparing results.
+    self.assertEqual(recognition_result, expected_recognition_result)
+    # Closes the gesture recognizer explicitly when the detector is not used in
+    # a context.
+    recognizer.close()
+
+
+if __name__ == '__main__':
+  absltest.main()